Heat storage due to photosynthesis and respiration activities in forests

Taku M. Saitoh, Ichiro Tamagawa, Hiroyuki Muraoka, Hiroshi Koizumi

    Research output: Contribution to journalArticle

    Abstract

    This study evaluated heat storage flux or released flux due to biotic activity (SC) in forests. First, as a case study, we investigated diurnal pattern of SC over an evergreen coniferous forest via a three-year continuous eddy-cov riance CO2 flux measurement. We clarified that (1) in some case, SC reached over 15% of total heat storage flux during the snow-free period (May-October), (2) SC was 4.3 W m-2 on average and reached 4.9-7.0% of average sensible and latent heat fluxes during the snow-free period. Second, we estimated SC by using net ecosystem exchange over several forest ecosystems as reported by previous studies. During the snow-free period over several forest ecosystems, the maximum SC and daily amplitude exceed 3-12 and 4-17 W m-2 respectively. Those values were comparable to those of the latent heat storage flux in the air layer from the ground surface to the level of eddy-covariance measurement over several forest ecosystems as shown by previous reports. Our findings suggest that SC cannot be always ignored. We would need to examine whether SC can be ignored based on the circumstances of the targeted research.

    Original languageEnglish
    Pages (from-to)289-298
    Number of pages10
    JournalJournal of Agricultural Meteorology
    Volume66
    Issue number4
    DOIs
    Publication statusPublished - 2010 Sep 1

    Fingerprint

    forest ecosystem
    photosynthesis
    respiration
    snow
    forest ecosystems
    heat
    net ecosystem exchange
    evergreen forest
    eddy covariance
    flux measurement
    latent heat flux
    sensible heat flux
    coniferous forest
    eddy
    diurnal variation
    coniferous forests
    carbon dioxide
    air
    case studies
    heat storage

    Keywords

    • Eddy-covariance
    • Forest
    • Heat storage
    • Photosynthesis
    • Respiration

    ASJC Scopus subject areas

    • Agronomy and Crop Science
    • Atmospheric Science

    Cite this

    Heat storage due to photosynthesis and respiration activities in forests. / Saitoh, Taku M.; Tamagawa, Ichiro; Muraoka, Hiroyuki; Koizumi, Hiroshi.

    In: Journal of Agricultural Meteorology, Vol. 66, No. 4, 01.09.2010, p. 289-298.

    Research output: Contribution to journalArticle

    Saitoh, Taku M. ; Tamagawa, Ichiro ; Muraoka, Hiroyuki ; Koizumi, Hiroshi. / Heat storage due to photosynthesis and respiration activities in forests. In: Journal of Agricultural Meteorology. 2010 ; Vol. 66, No. 4. pp. 289-298.
    @article{5872885c07fc4326aae44b9e96f2ca44,
    title = "Heat storage due to photosynthesis and respiration activities in forests",
    abstract = "This study evaluated heat storage flux or released flux due to biotic activity (SC) in forests. First, as a case study, we investigated diurnal pattern of SC over an evergreen coniferous forest via a three-year continuous eddy-cov riance CO2 flux measurement. We clarified that (1) in some case, SC reached over 15{\%} of total heat storage flux during the snow-free period (May-October), (2) SC was 4.3 W m-2 on average and reached 4.9-7.0{\%} of average sensible and latent heat fluxes during the snow-free period. Second, we estimated SC by using net ecosystem exchange over several forest ecosystems as reported by previous studies. During the snow-free period over several forest ecosystems, the maximum SC and daily amplitude exceed 3-12 and 4-17 W m-2 respectively. Those values were comparable to those of the latent heat storage flux in the air layer from the ground surface to the level of eddy-covariance measurement over several forest ecosystems as shown by previous reports. Our findings suggest that SC cannot be always ignored. We would need to examine whether SC can be ignored based on the circumstances of the targeted research.",
    keywords = "Eddy-covariance, Forest, Heat storage, Photosynthesis, Respiration",
    author = "Saitoh, {Taku M.} and Ichiro Tamagawa and Hiroyuki Muraoka and Hiroshi Koizumi",
    year = "2010",
    month = "9",
    day = "1",
    doi = "10.2480/agrmet.66.4.9",
    language = "English",
    volume = "66",
    pages = "289--298",
    journal = "J. AGRICULTURAL METEOROLOGY",
    issn = "0021-8588",
    publisher = "Society of Agricultural Meteorology of Japan/Nihon Nogyo Kisho Gakkai",
    number = "4",

    }

    TY - JOUR

    T1 - Heat storage due to photosynthesis and respiration activities in forests

    AU - Saitoh, Taku M.

    AU - Tamagawa, Ichiro

    AU - Muraoka, Hiroyuki

    AU - Koizumi, Hiroshi

    PY - 2010/9/1

    Y1 - 2010/9/1

    N2 - This study evaluated heat storage flux or released flux due to biotic activity (SC) in forests. First, as a case study, we investigated diurnal pattern of SC over an evergreen coniferous forest via a three-year continuous eddy-cov riance CO2 flux measurement. We clarified that (1) in some case, SC reached over 15% of total heat storage flux during the snow-free period (May-October), (2) SC was 4.3 W m-2 on average and reached 4.9-7.0% of average sensible and latent heat fluxes during the snow-free period. Second, we estimated SC by using net ecosystem exchange over several forest ecosystems as reported by previous studies. During the snow-free period over several forest ecosystems, the maximum SC and daily amplitude exceed 3-12 and 4-17 W m-2 respectively. Those values were comparable to those of the latent heat storage flux in the air layer from the ground surface to the level of eddy-covariance measurement over several forest ecosystems as shown by previous reports. Our findings suggest that SC cannot be always ignored. We would need to examine whether SC can be ignored based on the circumstances of the targeted research.

    AB - This study evaluated heat storage flux or released flux due to biotic activity (SC) in forests. First, as a case study, we investigated diurnal pattern of SC over an evergreen coniferous forest via a three-year continuous eddy-cov riance CO2 flux measurement. We clarified that (1) in some case, SC reached over 15% of total heat storage flux during the snow-free period (May-October), (2) SC was 4.3 W m-2 on average and reached 4.9-7.0% of average sensible and latent heat fluxes during the snow-free period. Second, we estimated SC by using net ecosystem exchange over several forest ecosystems as reported by previous studies. During the snow-free period over several forest ecosystems, the maximum SC and daily amplitude exceed 3-12 and 4-17 W m-2 respectively. Those values were comparable to those of the latent heat storage flux in the air layer from the ground surface to the level of eddy-covariance measurement over several forest ecosystems as shown by previous reports. Our findings suggest that SC cannot be always ignored. We would need to examine whether SC can be ignored based on the circumstances of the targeted research.

    KW - Eddy-covariance

    KW - Forest

    KW - Heat storage

    KW - Photosynthesis

    KW - Respiration

    UR - http://www.scopus.com/inward/record.url?scp=85024717129&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=85024717129&partnerID=8YFLogxK

    U2 - 10.2480/agrmet.66.4.9

    DO - 10.2480/agrmet.66.4.9

    M3 - Article

    AN - SCOPUS:85024717129

    VL - 66

    SP - 289

    EP - 298

    JO - J. AGRICULTURAL METEOROLOGY

    JF - J. AGRICULTURAL METEOROLOGY

    SN - 0021-8588

    IS - 4

    ER -